Impact of mode instability on polarization extinction ratio in backward pumped fiber amplifiers

Impact of mode instability on polarization extinction ratio in backward pumped fiber amplifiers

The influence of mode instability (MI) on polarization extinction ratio (PER) has been investigated in a 2 kW level polarization-maintained (PM) fiber laser system with backward pumping configuration, and the phenomena is different from the existing observations in forward-pumped PM fiber amplifiers...

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Bibliographic Details
Main Authors: Qiang Shu, Chun Zhang, Fang Li, Qiuhui Chu, Chao Guo, Fengyun Li, Haoyu Zhang, Rumao Tao, Honghuan Lin, Jianjun Wang
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-07-01
Series:Frontiers in Physics
Subjects:
mode instability
polarization extinction ratio
polarization-maintained fiber lasers
nonlinear effect
backward pump
Online Access:https://www.frontiersin.org/articles/10.3389/fphy.2025.1612074/full
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https://www.frontiersin.org/articles/10.3389/fphy.2025.1612074/full

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